Officials purposely created a rocky road to keep Brooklyn Bridge Park’s bike lane from turning into a cyclist speedway like the paths along the bridge and the one in Manhattan’s Hudson River Park.

But many cyclists, joggers and stroller moms don’t like the bumpy trek along the path’s gravel surface, which is divided into lanes for biking and strolling. The bike half also has speed bumps.

And they want the city to drop plans to put the gravel on a now-smooth section and use it on future extensions of the lane.

“While I appreciate the [city’s] concerns about slowing riders who may potentially race through, the measures they’ve taken have instead made it simply a place many do not enjoy riding at all,” said David “Paco” Abraham, an avid Cobble Hill cyclist and safe-streets advocate.

Abraham said bikers are so “rattled” by the gravel surface, called “chip seal,” and cobblestone speed bumps that many ride along “the much riskier” Furman Street, which parallels the path.

A Post reporter spent a half hour last week watching some 60 bikers risk their lives zipping along the bustling two-way Furman Street — or illegally riding on its very narrow sidewalk — during the afternoon rush rather than use the path.

“The bike path is just too slow, and you can’t sit because it’s a really rough ride,” said Adriana Marrone, 26, of Brooklyn Heights.

Officials chose chip seal over blacktop in 2010 when installing sections of the path near Pier 6 on Atlantic Avenue and another running from Pier 1 by Fulton Ferry Landing to Pier 2’s uplands. Last year, the graveled pathway was extended from Pier 1 five blocks east along the DUMBO waterfront to Main Street.

Over the past two years, critics have charged that the surface is slippery when wet, ruins tires on bikes and strollers, and is rough on joggers’ joints.

And, although officials say the path complies with the Americans with Disabilities Act, wheelchair bound park goers complain that it’s difficult to maneuver along the graveled stretch.

But despite the criticism, the city over the next year plans to replace blacktop sections of the path between Piers 3 and 5 with the graveled surface. And as the entire 1.3-mile long waterfront park is completed in coming years, the rest of its path – part of the city’s ongoing 14-mile Brooklyn Greenway bicycle-path project – will be covered in chip seal, officials said.

Jennifer Klein, VP of capital planning and construction for Brooklyn Bridge Park, said the city doesn’t consider the gravel a gaffe but rather “a unique design element of the park it doesn’t plan to change.”

She said the bike lane is geared towards “encouraging riders of all ages and experience” rather than “being a speedway like on the West Side of Manhattan,” which is where the Hudson River Park path stretches.

Brian McCormick, co-founder of the Brooklyn Greenway Initiative, said he doesn’t consider the use of chip seal at Brooklyn Bridge Park’s path “a problem” But he also said the rest of the Greenway project would use much smoother surfaces catering to bikers.

The gravel issue is also a sore spot with local joggers.

Emily Whitfield, of Cobble Hill, who is training for her third New York Marathon, said the footpath section of park’s trail is “annoying . . . because gravel gets in your shoes and raises dust. Also it’s easy to slip on.”

Roy Sloane, a longtime Cobble Hill activist and park advocate, ripped the city for snubbing members of a citizen advisory committee set up to advise officials on park construction because its members have repeatedly criticized the gravel-path plan.

“I really have to wonder if the city went with gravel as a way of limiting the number of people riding in the park,” he said.